Features:
Waterproof dustproof material can be used for the interior and exterior application.
Can be installed vertically, horizontally or underneath the dash, or any flat surface.
Optimised for iPad, iPhone & iPod - fast charging at full speed (2.1Amps for iPad, 1Amp for iPhone/iPod).
Widely used with electric equipment for power supply: Vehicle,GPS, mobile phone, camera, mp3 .
Apply to all USB charging mobile phones or other electronic products. Run multiple accessories at one time, very convenient and easy to use.

Item Specification:
Color: Black
Material: Nylon+Metal
Install Hole: 29mm
USB Power Socket Size: About 50x36.5mm
Voltmeter Size:about 36x15mm
Panel Size: About 105x45x55mm

Cautions:
CANNOT SMOKE!!!
Only use on voltage specificed.
Do not operate this device while driving.
This product is for 12/32V vehicles only.
Check maximum voltage on devices to charged in advance.
Always cover outlets when noy in use to aviod dust and water entering.

Voltmater Specifications:
Material:Environmental Protection Plastic
Power Supply: DC12-24V
Measuring range: 6-30V
Measurement accuracy: ±0.1%
LED Color: Green
Operating temperature:-10°C to 65°C
Outer diameter:36 mm
Thread diameter:29 mm
Thickness:15 mm

Package Included:
1 X 12-24V Dual USB Socket Mount Car Charger Adapter+Green LED Digital Display Voltmeter
4 X Insulated Terminals
4 X Screws